Displacement type compressor having a self-start synchronous...

Details Displacement type compressor having a self-start synchronous... Displacement type compressor having a self-start synchronous...

2005-12-27

2008-10-28

Trieu, Theresa (Department: 3748)

Rotary expansible chamber devices

Working member has planetary or planetating movement

Helical working member, e.g., scroll

C418S055500, C418S057000, C417S308000, C417S310000, C417S410100, C417S410500

Reexamination Certificate

active

07442017

ABSTRACT:
In order to make a displacement type compressor be able to reliably start without increasing an outside diameter dimension of the compressor while using a self-start synchronous motor having high energy efficiency, the displacement type compressor according to the invention includes the self-start synchronous motor which starts as an induction-motor and performs synchronous operation by performing synchronization pull-in almost at a synchronous rotational frequency, a compression part having a compression chamber which compresses a working fluid, and a hermetic container which houses the self-start synchronous motor and the compression part. The displacement type compressor is provided with a start load reducing means which reduces a load of the compression part at startup and is-placed at the compression part in the hermetic container.

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patent: A-2003-035289 (2003-02-01), None
patent: A-2003-134865 (2003-05-01), None

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